/*
 * Copyright (c) 2022-2022 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 *    conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 *    of conditions and the following disclaimer in the documentation and/or other materials
 *    provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _MNT_CONTAINER_H
#define _MNT_CONTAINER_H

#include "los_process_pri.h"
#include "los_container_base.h"
#include "los_container_bundle.h"
#include "fs/mount.h"
#include "sched.h"
#include "asm/atomic.h"
#include "vnode.h"

#ifdef LOSCFG_MNT_CONTAINER
typedef struct MntContainer {
	int count;
	struct ContainerBase containerBase;
	LIST_HEAD *mountList;
} MntContainer;

extern MntContainer g_rootMntContainer;

extern UINT32 g_currentMntContainerNum;

void InitMntContainer(MntContainer *mntContainer);

INT32 ReplaceMntContainerInBundle(ContainerBundle* bundle, struct MntContainer *targetMntContainer);

MntContainer *HandleMntContainer(unsigned long flags, MntContainer *runMntContainer);

void FreeMntContainer(MntContainer *mntContainer);

STATIC INLINE VOID GetMntContainer(MntContainer *pMntContainer)
{
    atomic_inc(&pMntContainer->count);
}

STATIC INLINE VOID DerefMntContainer(MntContainer *pMntContainer)
{
    if (atomic_dec_and_test(&pMntContainer->count)) {
        FreeMntContainer(pMntContainer);
    }
}

STATIC INLINE LIST_HEAD *GetContainerMntList(VOID)
{
    return OsCurrProcessGet()->containerBundle->mntContainer->mountList;
}

#endif
#endif /* _MNT_CONTAINER_H */